0 Euro - Schwarzwald - Titisee

EuroSouvenir's zero-denomination collector notes are legal tender in the technical sense — issued under a European Central Bank framework that permits commemorative euros — but no retailer is obligated to accept them, and none do. Oberthur Fiduciaire, one of the major European security printers, produces the entire series to banknote specification, which is precisely the point: the paper, the watermark, the feel are indistinguishable from circulating currency, and that's what the buyer is paying for.

Titisee, the glacial lake in the southern Black Forest, has been a mass-tourism destination since the railway reached it in 1887. The souvenir note market there is brisk.